IR21084SPBF datasheet by International Rectifier

IR21084SPBF Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the IR21084SPBF?
  The maximum operating frequency of the IR21084SPBF is 1 MHz, but it can be operated up to 2 MHz with some limitations on the deadtime and minimum pulse width.
• How do I calculate the deadtime of the IR21084SPBF?
  The deadtime of the IR21084SPBF can be calculated using the formula: Deadtime (ns) = (RT - 100) / 10, where RT is the resistance of the resistor connected between the RT pin and the VCC pin.
• What is the purpose of the SD pin on the IR21084SPBF?
  The SD (Shutdown) pin is used to shut down the device when it is pulled low. When the SD pin is low, the device enters a low-power state, and all outputs are turned off.
• How do I ensure that the IR21084SPBF is properly biased?
  To ensure proper biasing, the VCC pin should be connected to a stable 15V power supply, and the GND pin should be connected to the system ground. The VCC pin should also be decoupled with a 1uF ceramic capacitor to reduce noise.
• What is the maximum output current of the IR21084SPBF?
  The maximum output current of the IR21084SPBF is 2A per channel, but it can be limited by the external bootstrap diode and the power supply voltage.